Illuminating device and light emitting unit

ABSTRACT

An illuminating device comprising a lampshade, an electric connector and a light emitting unit, in which the lampshade has therein a receiving space for receiving the light emitting unit, and for fixing the electric connector on its rear side to connect a pair of electric power lines, the illuminating device is characterized in that: the light emitting unit includes two plug-in pins, a front half part of each plug-in pin is an arched elastic buffering portion, and a rear half part of the plug-in pin is a fixing portion; when the two plug-in pins are fixed onto the electric connector, the elastic buffering portions can absorb outwardly stretching deforming forces exerted on the plug-in pins, thus avoid breaking of the plug-in pins in bearing forces, superiority of production can be effectively increased, and the life of use of the illuminating device can be elongated.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an illuminating device; and especiallyto an illuminating device with high superiority of production, theilluminating device can render an illuminating to get elongated life ofuse.

2. Description of the Prior Art

A normal conventional illuminating device has a plug-in pin of a lightemitting unit (such as an LED) connected by welding with an electricpower line, in order to give the light emitting unit electric powersource to emit light; however in use, changing of the light emittingunit is quite in convenient, there have been illuminating devicesdeveloped in the markets for the convenience of detaching and changingthe light emitting unit without welding.

Such a illuminating device is provided in a lampshade having a receivingspace with an electrically connecting device, the electricallyconnecting device has a light emitting unit, and is provided with a pairof receiving holes each having therein an electrically conductivemember, one end of each electrically conductive member is connected withan electric power line, while the other end is used for insertionconnecting of a plug-in pin of the light emitting unit, in order thatthe electric power line can provide electric power for the lightemitting unit via the electrically conductive member.

The electrically connecting device and the electrically conductivemember are provided radially with a plurality of fixing holes mutuallyopposite to, being used for screwing in of screws to fix the electricpower line, the plug-in pin of the light emitting unit and theelectrically conductive member onto the electrically connecting device.

The illuminating device can have the light emitting unit changedconveniently, and can be electrically connected with the electric powerline without welding. However, the plug-in pin of the light emittingunit used on the illuminating device is in a linear shape, a rotativescrew is needed to clamp the plug-in pins in installing, thereby when inlocking a second one of the plug-in pins after the first one of theplug-in pins is locked, an outwardly stretching deforming force will becreated in locking the second plug-in pin because the first plug-in pinhas been locked, so that the plug-in pins of the light emitting unit aresubjected to deforming and breaking when being borne with a force, andthe light emitting unit is damaged and discarded. Meantime problems ofassembling and repairing are induced.

In view of these, the inventor of the present invention studied anddeveloped an illuminating device and a light emitting unit that canavoid the defect of easy deforming and breaking of the plug-in pins ofthe light emitting unit when in assembling, thereby superiority ofproduction can be effectively increased, and the life of use of thelight emitting unit can be elongated.

SUMMARY OF THE INVENTION

The primary object of the present invention is to provide anilluminating device and a light emitting unit that is easy forassembling and can avoid the defect of easy deforming and breaking ofplug-in pins of the light emitting unit when in assembling, therebysuperiority of production can be effectively increased, and the life ofuse of the light emitting unit can be elongated.

For achieving the above object, the present invention is composed of alampshade, an electric connector and a light emitting unit, in which thelampshade has therein a receiving space for receiving the light emittingunit, and for fixing the electric connector on its rear side to connecta pair of electric power lines, the present invention is characterizedin that:

The light emitting unit is composed of a light emitting part and twoplug-in pins which includes a first plug-in pin and a second plug-inpin, a front half part of each of the first and the second plug-in pinsis an arched elastic buffering portion, and a rear half part of each ofthe plug-in pins is a fixing portion for fixing. The fixing portion iselectrically connected with the electric connector, in order that theelectric connector can provide electric power for light emitting of alight emitting part via the first and the second plug-in pins; Theelectric connector is provided in opposition to the light emitting unitwith an insertion connecting portion for insertion of the first and thesecond plug-in pins, and is provided on its two lateral sides inopposition to the fixing portions of the plug-in pins with fixing holesfor inserting and fixing of screws therein.

When the screws are used to fix the first plug-in pin, by virtue thatthey are rotatively screwed in, they render the first plug-in pin tobear outwardly stretching deforming forces, this will change theoriginal angular of the first plug-in pin relative to the light emittingpart, meantime will change the angle between the first and the secondplug-in pins.

However, by virtue that the elastic buffering portions of the first andthe second plug-in pins are each in an arch shape and are elastic, whenin fixing the second plug-in pin, the elastic buffering portions of thefirst and the second plug-in pins can absorb the outwardly stretchingdeforming forces exerted by the screws on the second plug-in pin beingfixed, so that both the first and the second plug-in pin will not bedeformed and broken.

When in practicing, the lampshade is composed of an upper cover, abottom seat and a connecting member for fixing the upper cover and thebottom seat, the upper cover and the bottom seat is formed therebetweena receiving space for receiving the light emitting unit; the upper coveris provided on its front side with a front engaging portion, and on itsrear side with a rear engaging portion, and at its center with atransparent sheet for radiating out of light from the light emittingunit.

The bottom seat has a lug extending out of the front side of it, the lugis excavated to form therein a screw hole for screwing in of a screw,the bottom seat is excavated on its rear side to form a through hole,the upper edge of the rear side has a rear engaging piece extendingupwards and is curved for pressing downwards the rear engaging portionon the upper cover to fix the upper cover onto the bottom seat.

The connecting member has a curved shape and is elastic, one end of itis used for engaging an engaging portion below the lug, the other end ofit is a pressing portion for press engaging the front engaging portionof the upper cover, the pressing portion is provided with a screw holefor screwing in of a screw, the screw hole is in cooperation with thescrew hole on the lug, thereby the screw can lock the upper cover andthe bottom seat together.

The electric connector, in addition to being provided on its front sidewith the insertion connecting portion for inserting of the lightemitting unit, and being provided on its two lateral sides with thefixing hole for locking the light emitting unit with the abovementionedscrews, is provided on its top with a fixedly connecting portion, thefixedly connecting portion has a fixedly connecting hole for lockingtherein with a screw, hence the connector can be fixed in the throughhole of the bottom seat. And more, the connector is provided on the rearof the insertion connecting portion with a pair of receiving holes, eachreceiving hole is provided with an electrically conductive member, eachelectrically conductive member is electrically connected with anelectric power line, and one plug-in pin of the light emitting unit, sothat the electric power line can provide electric power for lightemitting of the light emitting unit. When in practicing, theelectrically conductive members each can have a cylindrical shape, theelastic buffering portions of the first and the second plug-in pins onthe light emitting unit can be in the shape of “U” or “V”.

As compared with the conventional technique, designing of the elasticbuffering portions on the light emitting unit of the present inventioncan absorb the outwardly stretching deforming forces exerted by screwsin fixing the first and the second plug-in pins, this can avoid breakingof the first and the second plug-in pins in bearing forces, thussuperiority of production can be effectively increased, rate forrepairing can be lowered, and the life of use of the light emitting unitcan be elongated. And designing of connecting by engaging on the housingof the lampshade and the bottom seat of the lampshade even allows fastassembling and disassembling, thus time for assembling and repairing canbe reduced, and convenience of use can be increased.

The present invention will be apparent after reading the detaileddescription of the preferred embodiment thereof in reference to theaccompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an exploded perspective view of the present invention;

FIG. 3 is an exploded perspective view showing a light emitting unit andan electric connector;

FIG. 4 is a schematic view showing insertion connecting of the lightemitting unit with the electric connector;

FIG. 5 is a partial sectional view of the present invention;

FIG. 6 is another partial sectional view of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring firstly to FIGS. 1-3, an illuminating device of the presentinvention is composed of a lampshade 10, an electric connector 20 and alight emitting unit 30, in which the lampshade 10 has therein areceiving space for receiving the light emitting unit 30, the lightemitting unit 30 has two plug-in pins 32 a, 32 b electrically connectedwith the electric connector 20; the front end of the electric connector20 is fixed on the rear side of the lampshade 10, and the rear end ofthe electric connector 20 is connected with a pair of electric powerlines 40, so that the light emitting unit 30 can be connected to anelectric power supply via the electric connector 20.

Wherein, as shown in FIGS. 2-4, the light emitting unit 30 is composedof a light emitting part 31 and the two plug-in pins which include afirst and a second plug-in pin 32 a, 32 b, a front half part of each ofthe first and the second plug-in pins 32 a, 32 b is an arched elasticbuffering portion 33, and a rear half part of each of the plug-in pins32 a, 32 b is a fixing portion 34 for fixing. The fixing portion 34 iselectrically connected with the electric connector 20, in order that theelectric connector 20 can provide electric power for light emitting ofthe light emitting part 31 via the first and the second plug-in pins 32a, 32 b; The electric connector 20 is provided in opposition to thelight emitting unit 30 with an insertion connecting portion 21 forinsertion of the first and the second plug-in pins 32 a, 32 b, and isprovided on its two lateral sides with fixing holes 22 being provided onthe fixing portions 34 respectively of the first and the second plug-inpins 32 a, 32 b for inserting and fixing of screws 221 therein.

As shown in FIGS. 5 and 6, when the screws 221 are used to fix the firstplug-in pin 32 a, by virtue that they are screwed in by the mode ofrotating, they render the first plug-in pin 32 a will to bear outwardlystretching deforming forces, this will change the original angular ofthe first plug-in pin 32 a relative to the light emitting part 31,meantime will change the angle between the first and the second plug-inpins 32 a, 32 b.

However, by virtue that the elastic buffering portions 33 of the firstand the second plug-in pins 32 a, 32 b are each in an arch shape and areelastic, when in fixing the second plug-in pin 32 b, the elasticbuffering portions 33 of the first and the second plug-in pins 32 a, 32b can absorb the outwardly stretching deforming forces exerted by thescrews 221 on the second plug-in pin 32 b being fixed, so that thesecond plug-in pin 32 b will not be deformed and broken.

When in practicing, as shown in FIGS. 2-4,the lampshade 10 is composedof an upper cover 110, a bottom seat 120 and a connecting member 130 forfixing the upper cover 110 and the bottom seat 120, the upper cover 110and the bottom seat 120 is formed therebetween a receiving space forreceiving the light emitting unit 30; the upper cover 110 is provided onits front side with a front engaging portion 111, and on its rear sidewith a rear engaging portion 112, and at its center with a transparentsheet 113 for radiating out of light from the light emitting unit 30.

The bottom seat 120 has a lug 121 extending out of the front side of it,the lug 121 is excavated to form therein a screw hole 122 for screwingin of a screw, the bottom seat 120 is excavated on its rear side to forma through hole 123, the upper edge of the rear side has a rear engagingpiece 124 extending upwards and is curved for pressing downwards therear engaging portion 112 on the upper cover 110 to fix the upper cover110 onto the bottom seat 120.

The connecting member 130 has a curved shape and is elastic, one end ofit is used for engaging an engaging portion 131 below the lug 121, theother end of it is a pressing portion 132 for press engaging the frontengaging portion 111 of the upper cover 110, the pressing portion 132 isprovided with a screw hole 133 for screwing in of a screw, the screwhole 133 is in cooperation with the screw hole 121 on the lug 133,thereby the screw can lock the upper cover 110 and the bottom seat 120together.

The electric connector 20, in addition to being provided on its frontside with the insertion connecting portion 21 for inserting of the lightemitting unit 30, and being provided on its two lateral sides with thefixing hole 22 for locking the light emitting unit 30 with the screws221, is provided on its top with a fixedly connecting portion 23, thefixedly connecting portion 23 has a fixedly connecting hole 24 forlocking therein with a screw, hence the electric connector 20 can befixed in the through hole 123 of the bottom seat 120. And more, theelectric connector 20 is provided on the rear of the insertionconnecting portion 21 with a pair of receiving holes 25, each receivinghole 25 is provided with an electrically conductive member 251, eachelectrically conductive member 251 is electrically connected with anelectric power line 40, and one plug-in pin of the light emitting unit30, so that the electric power line 40 can provide electric power forlight emitting of the light emitting unit 30. When in practicing, theelectrically conductive members 251 each can have a cylindrical shape,the elastic buffering portions 33 of the first and the second plug-inpins 32 a, 32 b on the light emitting unit 30 can be in the shape of “U”or “V”.

The names of the members and the drawings for the present invention areonly for illustrating preferred embodiments of the present invention,and not for giving any limitation to the scope of the present invention.It will be apparent to those skilled in this art that various equivalentmodifications or changes without departing from the spirit, scope andcharacteristic of this invention shall fall within the scope of theappended claims and are intended to form part of this invention.

1. An illuminating device comprising a lampshade, an electric connectorand a light emitting unit, in which said lampshade has therein areceiving space for receiving said light emitting unit, and for fixingsaid electric connector on its rear side to connect a pair of electricpower lines, said illuminating device is characterized in that: saidlight emitting unit includes two plug-in pins, a front half part of eachof said plug-in pins is an arched elastic buffering portion, and a rearhalf part of each of said plug-in pins is a fixing portion for fixing;said electric connector is provided in opposition to said light emittingunit with an insertion connecting portion for insertion of said twoplug-in pins, and is provided on its two lateral sides in opposition tosaid fixing portions of said plug-in pins with fixing holes forinserting and fixing of screws therein, said elastic buffering portionsare adapted to absorbing outwardly stretching deforming forces exertedby said screws in fixing said plug-in pins, thus avoid breaking of saidplug-in pins in bearing forces.
 2. The illuminating device as in claim1, wherein: said electric connector is provided on a rear side of saidinsertion connecting portion with a pair of receiving holes, each ofsaid receiving holes is provided with an electrically conductive memberbeing electrically connected with an electric power line and one of saidplug-in pins of said light emitting unit.
 3. The illuminating device asin claim 2, wherein: said electrically conductive members each has acylindrical shape.
 4. The illuminating device as in claim 1, wherein:said lampshade is composed of an upper cover, a bottom seat and aconnecting member for fixing said upper cover and said bottom seat, saidupper cover and said bottom seat is formed therebetween a receivingspace for receiving said light emitting unit; said upper cover isprovided at its center with a transparent sheet for radiating out oflight from said light emitting unit.
 5. The illuminating device as inclaim 4, wherein: said upper cover is provided on its rear side with arear engaging portion, an upper edge of said rear side has a rearengaging piece extending upwards, said rear engaging piece pressesdownwards said rear engaging portion on said upper cover to fix saidupper cover onto said rear side of said bottom seat; said upper cover isprovided on its front side with a front engaging portion, said bottomseat has a lug extending out of its front side, said lug is excavated toform therein a screw hole for screwing in of a screw; said connectingmember has a curved shape and is elastic, one end of it is used forengaging an engaging portion below said lug, another end of it is apressing portion for press engaging said front engaging portion of saidupper cover, said pressing portion is provided with a screw hole forscrewing in of a screw, said screw hole is in cooperation with saidscrew hole on said lug, thereby said screw locks said upper cover andsaid front side of said bottom seat together.
 6. The illuminating deviceas in claim 4, wherein: said bottom seat is excavated on its rear sideto form a through hole; said electric connector is provided on its topwith a fixedly connecting portion, said fixedly connecting portion has afixedly connecting hole for locking therein with a screw, hence saidconnector is fixed in said through hole on said rear side of said bottomseat.
 7. The illuminating device as in claim 1, wherein: said elasticbuffering portion of each of said plug-in pins on said light emittingunit is in a shape of “U”.
 8. The illuminating device as in claim 1,wherein: said elastic buffering portion of each of said plug-in pins onsaid light emitting unit is in a shape of “V”.
 9. An illuminating unitadapted for installing on an electric connector, said electric connectoris connected to an electric power supply to provide electric power forlight emitting of said light emitting unit, wherein: said light emittingunit is composed of a light emitting part and two plug-in pins whichinclude a first and a second plug-in pin, a front half part of each ofsaid first and the second plug-in pins is an arched elastic bufferingportion, and a rear half part of each of said plug-in pins is a fixingportion for fixing, said first and second plug-in pins are inserted insaid electric connector to electrically connect thereto, a lightemitting part thus is provided with electric power for light emittingvia said first and second plug-in pins.
 10. The illuminating device asin claim 9, wherein: said electric connector is provided in oppositionto said light emitting unit with an insertion connecting portion forinsertion of said first and second plug-in pins, and is provided on itstwo lateral sides with fixing holes being provided on said fixingportions respectively of said first and the second plug-in pins forinserting and fixing of screws therein.
 11. The illuminating device asin claim 9, wherein: said electric connector is provided on a rear sideof an insertion connecting portion with a pair of receiving holes, eachof said receiving holes is provided with an electrically conductivemember being electrically connected with an electric power line and oneof said plug-in pins of said light emitting unit.
 12. The illuminatingdevice as in claim 9, wherein: said elastic buffering portion of each ofsaid first and second plug-in pins on said light emitting unit is in ashape of “U”.
 13. The illuminating device as in claim 9, wherein: saidelastic buffering portion of each of said first and second plug-in pinson said light emitting unit is in a shape of “V”.